Exposure
ID
GRAVI.2021-05-29T06:25:49.543_2
Header ID
GRAVI.2021-05-29T06:25:49.543
Date updated
2021-05-29 06:40:15 UTC+0000
Release date
2022-05-29 06:40:15 UTC+0000
UTC Start
2021-05-29 06:25:49.543
UTC End
2021-05-29 06:31:09.543
MJD Start
59363.26793452
MJD End
59363.2716382237
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.004375
Ambient temperature (°C)
10.36
Seeing (arcsec)
0.55
Observation
ID
47451
Category
science
Program ID
105.20B2.002
Program Title
THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ PERRIN/ STRAUBMEIER/ ROUSSELET-PERRAUT/ GARCIA/ BRANDNER/ GENZEL/ ECKART/ PAUMARD/ CL'ENET/ GAO/ HABIBI/ HORROBIN/ KERVELLA/ OTT/ WIDMANN/ VON FELLENBERG/ HENNING/ PFUHL/ WAISBERG/ DEXTER/ DE ZEEUW/ AMORIM
Target
ID
35588
Name
IRS16C
RA
266.4171125
DEC
-29.0076491944444
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.1990 56.1290 28.7000 29.3000
U1-U3 101.7220 101.5610 35.1000 35.6000
U1-U4 129.2350 128.8980 63.3140 63.9390
U2-U3 46.2930 46.2030 42.8000 43.4000
U2-U4 88.9200 88.6900 84.3590 85.0440
U3-U4 62.3530 62.2630 113.8550 114.5910
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59363.26793452
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416817
DEC -29.00713
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 56.199
HIERARCH ESO ISS PBL12 END 56.129
HIERARCH ESO ISS PBLA12 START 28.7
HIERARCH ESO ISS PBLA12 END 29.3
HIERARCH ESO ISS PBL13 START 101.722
HIERARCH ESO ISS PBL13 END 101.561
HIERARCH ESO ISS PBLA13 START 35.1
HIERARCH ESO ISS PBLA13 END 35.6
HIERARCH ESO ISS PBL14 START 129.235
HIERARCH ESO ISS PBL14 END 128.898
HIERARCH ESO ISS PBLA14 START 63.314
HIERARCH ESO ISS PBLA14 END 63.939
HIERARCH ESO ISS PBL23 START 46.293
HIERARCH ESO ISS PBL23 END 46.203
HIERARCH ESO ISS PBLA23 START 42.8
HIERARCH ESO ISS PBLA23 END 43.4
HIERARCH ESO ISS PBL24 START 88.92
HIERARCH ESO ISS PBL24 END 88.69
HIERARCH ESO ISS PBLA24 START 84.359
HIERARCH ESO ISS PBLA24 END 85.044
HIERARCH ESO ISS PBL34 START 62.353
HIERARCH ESO ISS PBL34 END 62.263
HIERARCH ESO ISS PBLA34 START 113.855
HIERARCH ESO ISS PBLA34 END 114.591
HIERARCH ESO ISS AMBI TAU0 START 0.004075
HIERARCH ESO ISS AMBI TAU0 END 0.004675
HIERARCH ESO ISS AMBI TEMP 10.36
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.56
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371